Constructional form of rolling mill



Oct. 11, 1932. R KRQNENBERG 1,882,507

CONSTRUCTIONAL FORM OF ROLLING MILL Original Filed Aug 28, 1929 2 Sheets-Sheet 1 Fig. 3.

Oct. 11, 1932. R. KRONENBERG 1,882,507

CONSTRUCTIONAL FORM OF ROLLING MILL Original Filed Aug. 28, 1929 2 Sheets-Sheet 2 Patented Oct. 11, 1932 UNITED STATES CONSTRUCTIQNAL FORM or ROLLING MILL enema;

RUDOLF KRONENBERG, or HAUS KRONENBERG, POST IMMIGRATHTGE IQNY; i

Original application filed August 28, 1929, Serial No. 389,077, and in Germany April 17, 1929. Divided and this application filed September 24, 1930. Serial No. 484,185.

The present application is a division of my co-pendin application filed August 28th. 1929, Serial 1 0. 389,007, applications filed in Germany on April 17, and June 20, 1929.

This invention relates to an improved constructional form of the rolling mill shown and described in, and forming the subject-matter of, my United States Patent No. 1,697,012, the main features of which relate, according to its claim 1, to a multiplicity of rollers, one of which is mounted for oscillatory movement with respect to the other, and of cooperating means, one of which is movable in the arc of a circle with respectto the other to prevent uneven rolling of the material between said rollers; In other words one ofthe rollers is so arranged and supported that it can oscillate around a continuously: stationary centre 1 eral devices for effecting the. adjustment of the supporting body which co-operates with the circularly curved surface mentioned.

Now the present invention relates to a particularly practical constructional form of a device for adjusting the circularly curved supporting body for the bearing places of the roller, this constructional form being so designed that any end play or lost motion when the supporting body is adjusted 'or readjusted or reversed is completely obviated.

This constitutes a considerable progress, in that with the known devlces and then varlous constructional forms the end play or lost motion from which they suffered have proved'detrimental. I attain the new 0131601 in view by providing means engaging the supporting body laterally from both sides of the engaging part of the same and being an inter-actionwith one another, said means beingv subjected to a certain preliminary or pressing tension. I

The invention is illustrated in the accompanying drawings. Fig. 1 is a section, Fig. 2 is a side view. a Fig. 3 is a section'through of Fig. 1. V Fig; 4 shows a modification concerning the shifting of the centre of oscillation. I I Fig. 5-is a side view of the modification.

the upp hal The subject .matter herein claimed constitutes a division of my'Pate'nt No. 1,811,586, issued June 23, 1931.

.Concerning the constructions shown in.

Figs. 1, 2 and 3 the bodies or members 2 and k are practically suchas in Fig. 1 of the Patent No. 1,811,586, dated June 23, 1931, the member being also in this case concave on its bottom face and the member 2 being con-' vex on its top face. i

The two members are located between guide members 70 and v71', of which 71 can follow the oscillatory movement of the member 2', but which both (7 Oand 71) cannot (counter to the arrangement in Figures 1 and2) be shifted in the axialdirection of the rollers d and a. The cross-sectlonal shape of the said guide members 70 and 71 appears distinctly from Figure 5. The guidev member 70 resembles in transversesectionan inverted U and embraces or encloses the concave body member is, whereas the guide member 71, more precisely, its upper portion, resembles in transverse section a U and embraces or encloses the convex body member 2'. At each frontal side of the guide member 70 are horizontal bridges 7 2, of which each supports a pressure spindle 73, and 74 respectively, by which both members 2' andk can be shifted in and between said guide,

ing shifted at a time. Themeinbers i and 71 are connected with one another by screws 75 or the like threaded into the members.

If the bodies 71 and 7c areto be shifted so as member 71, and nowboth bodies 71 and k to-' 'gether can be shifted by meansof the. screws ,members 70 and 71, both members iand la be- 7 3 and 74. The threaded pores provided in the body 71 for the reception of the screws 75 are at those faces where they terminate so extended horizontally in opposite directions as to form slots 7 6 (Fig. l) in which the ends.

of said bolts can be shifted and which determine the maximum length of the shifting of the said body 2'. The slots 76 are formed in the part 71. This maximum length is indicated in Fig. 1 by the dotted line 77. Within the length of this line any desired point can be chosen as centre of oscillation, so that also .Ilf narrow rolling material is to be dealt with the operative circumferential surfaceof the 'material to be rolled. The mechanism for thusturning said body 2' may be of any desired design, for instance such as has already been described with respect to the other figures.

When the body *5 is moved" relatively to the body 70 the oscillatory axis 80 maintains always its position, viz, in the middle plane of the mill. But the two rollers a and (l, together with their braces f and h, as well f *and b and the supporting bodies "71 and 81,

can be shifted laterally and parallel to the axis of the rollers, whereas the-bodies z and 70 'do not take part in the shifting. If the rollers together with the supporting parts are moved in one orthe other of the possible two directions another point in the osclllatory axis 80 forms the centre of oscillation. The

operating circumferential surfaces of the I rollers can, thus be used'and utilized at any desired portion where the material to be rolled may be passed through.

The extreme positions of the parts f, h, 71 and 81 are indicated by dotted lines in Fig. 4.

' While'in the present instance the part i is oscillated in the same manner as in my prior cation.

patent, above referred to, in the present inv stance, there is a material difference in the operation and the'arrangement of parts. The means for moving the parts 2" and 7c in the prior patent are by no means the equivalent of the screws 73 and 74 of the present appli- In the present instance the screws 73 and 74c are not for the purpose of and do 7 not serve to move the parts 2' and is towards one another, but these screws operate to shift the parts i and is jointly, that is,'both are moved together over the leaders and 71,

f on that they are shiftably adjusted over the leaders 70 and 71, and the part 71 can follow the shiftingmovement of the'part i.

Yet,

' both the parts 70 and 71 cannot be shifted in the direction toward the axle roller. This forms not only a different arrangement, but a different action, or operation, for a different and useful purpose, not capable of being attained by my prior patent.

In practice I have found it desirable to regulate at will the shifting point of the regulating part 77, so that thereby a uniform wearing oil of the rollers is obtained when narrow rollings are made.

What I claim is:

1. A rolling mill, comprising, in combinationwith the rollers and their trunnion bearings, a member bearing upon the braces of the upper roller and having upwardly directed parallel ledges on its top; a body having a convex top face,;another member having a concave bottom face and receiving saidconvex 'member in it; and means for shifting these closing the part having the concave surface and another member located below and enclosing, the part having the convex surface; said latter two members beingstationary and the said concave and the said convex part being shiftable jointly between themfand means for affecting this shifting of said'members jointly, substantially as set'forth;

3. The rolling mill, comprising, in combination with the rollers and their trunnion bearings, a member bearing upon thebraces of the upper roller and having'upwardly directed parallel ledges on its top; a body having a convex top face, and another member having a concave bottom face and receiving said convexmember in it; a member overlapping and enclosing the part having the concave surface and another member located below, and enclosing, the part having the convex surface; said latter two members being stationary and said concave and the said convex part being shiftable between them; adjustable screws bearing on the frontal faces of the concave part and adapted to move said parts jointly, and means holding said screws in connection with the part located above, and enclosing, the said concave part, substantially as set forth. v

4. A rolling mill, comprising, in combibelow, and enclosing, the part having the convex surface; said latter two members being stationary and the said concave and the said convex part being shiftable between them; screws extending through the lower member which supports and encloses the convex part into slots in this part, said screws serving to move said parts jointly substantially and for the purpose set forth.

5. A rolling mill, comprising, in combination with the roller and their trunnion bearings, a member bearing upon braces of the upper roller and having upwardly directed parallel ledges on its top; a body having a convex top face, another member having a concave bottom face and receiving said convex member in it; and means for shifting these members simultaneously in axial direction with milling rollers having each a separate operating middle portion of larger diameter than the other portions, trunnion bearings contacting with these latter portions shiftable members below and above said bearings, and means for shifting them together with said rollers jointly in one direction, substantially and for the purpose set forth.

In testimony whereof I afiix my signature.

RUDOLF KRONENBERG. 

